The Weigh Safe Adjustable Ball Mount effectively measures the tongue weight of your trailer load, helping you ensure that your vehicle is properly balanced and safe to tow. Injuries, fatalities, and loss of property are all preventable by ensuring proper tongue weight. Pressure on the stainless steel tow ball sends a reading to the built-in scale that measures tongue weight (lbs.) GMC guidelines for proper towing states tongue weight should be no less than 10% of gross trailer weight (GTW) and no more than 15%. For example, tongue weight for a 10, 000 pound full-loaded trailer should be no less than 1, 000 lbs. and no more than 1, 500 lbs. Note: Weigh Safe max tongue weight is 1, 500 lbs. (2 shank) and 2, 200 lbs.(2.5 & 3 shank). Do not tow if your reading is in the red zone. Features: Weigh Safe comes in four different drop sizes â 4", 6 , 8", and 10" â that adjust in one-inch increments to fit your need. Weigh Safe can also be used in the rise position. Weigh Safe comes standard with a slider lock and dust lock cover. Since 1975, trailer-related fatalities have climbed to 19, 582. Since 1988, reported injuries have surpassed 800, 000 & over 2 million vehicles, boats, trailers, & other property have been damaged or totaled. Weigh Safe won the 2014 SEMA award for Best New Tools & Equipment Weigh Safe comes in a 2"" (10, 000 max GTW), 2.5"" (14, 500 max GTW), or new 3 (21, 000 max GTW) shank to accommodate both older & newer truck models. | Weigh Safe LLC Weigh Safe Adjustable Drop Hitch - 8" Drop for 2" Shank in Red